Keyboard



FIG. 1 is a perspective view of a keyboard showing our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a rear perspective view thereof;

FIG. 4 is a front view thereof;

FIG. 5 is a rear view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a right side view thereof;

FIG. 8 is a top view thereof;

FIG. 9 is a bottom view thereof;

FIG. 10 is an enlarged view of an indicated portion of FIG. 1;

FIG. 11 is an enlarged view of an indicated portion of FIG. 3;

FIG. 12 is an enlarged view of an indicated portion of FIG. 3; and,

FIG. 13 is a rear perspective view thereof showing a state that a connecting member is rotated and has not been connected to a screen.

The dot-dashed broken lines represent a boundary of the keyboard and form no part of the claimed design, all of the remaining broken lines represent environment only and form no part of the claimed design. 

CLAIM The ornamental design for a keyboard, as shown and described. 